Protecting Worker Health

Reducing Legionella Risk in Your Buildings

Wednesday, March 29, 2017 1:00pm - 2:00pm EDT  
Host: AIHA
By: Ray Petrisek, Director of Environmental Microbiology , HP Environmental Laboratory and Dr. Dan Broder, Lead Scientist , IDEXX’s Legiolert™ R&D team

Industrial hygienists play an essential role in managing the risk of exposure to Legionella, the most prevalent disease causing waterborne microorganism in the U.S. today. Legionella exposure can lead to Legionnaires’ disease, a potentially deadly form of pneumonia that is highly preventable with the right planning. This webinar will cover the basic science of Legionella bacteria in both building systems and in the environment, guidelines focused on preventing Legionnaires’ disease, the latest developments in water quality monitoring, and concrete steps to ensure the effectiveness of water safety management plans. There will be ample time for questions.

By the end of the presentation, attendees will be able to:

  • articulate the role of an industrial hygienist in reducing Legionella risk
  • describe the basic science of the Legionella bacteria
  • compare the risks associated with different species of Legionella
  • list the elements of an effective water management plan
  • compare options for testing water to determine whether a water management plan is successfully reducing the risk of Legionnaires’ disease
  • make more informed decisions about how best to reduce Legionella exposure from water in buildings, taps and showers, cooling towers, and fountains


This Webinar has ended, but you can view its content in the archive below.
Please sign in, or enter the following to view the content archive:


Please register above to view this Webinar.


Ray Petrisek
Ray Petrisek

Director of Environmental Microbiology, HP Environmental Laboratory

Ray Petrisek is director of environmental microbiology at HP Environmental Laboratory, where he consults on indoor air quality (IAQ) assessments, reviews scientific data dealing with human exposure to biohazards, and has conducted numerous investigations of biocontamination of water-damaged buildings and water systems. Petrisek is a member of the American Industrial Hygiene Association (AIHA), the American Academy of Allergy and Immunology, American Academy of Microbiology, American Society of Microbiology, and the International Association for Aerobiology. He received his bachelors of science and administration degrees in microbiology from Kent State University and his master of science in medical microbiology from Ohio State University.  

Dr. Dan Broder
Dr. Dan Broder

Lead Scientist, IDEXX’s Legiolert™ R&D team

Dr. Dan Broder is the lead scientist for IDEXX’s Legiolert R&D team. Legiolert is a new quantitative culture-based method which simplifies the detection of Legionella pneumophila in water samples. He is currently co-authoring international field trial studies on the performance of Legiolert vs. standard method technologies. Previously, Broder was a senior scientist at a molecular diagnostics company specializing in genetic profile characterization. He earned his PhD in microbiology from the University of Illinois at Urbana-Champaign, where he studied the biochemistry and metabolism associated with proteolytic breakdown in gram negative organisms.



Invite Others

Enter email addresses of people you want to invite, separated by commas.